Automatic sprinkler.



y No. 900,886.

lthat I, GEORGE A 4 'a citizen of thedfinted States, residing at I STATES PATENT @FELICE- GEORGE i. Rocniv'oon.'orwonorsrrn;Missicnrsrrrs i l AUTOMATIC SPRIN'KLER.

To aU-whomit may.cimrerni t I. Rooittvoon,v

WoroesterLinthe county of Worcester and Commonwea-lthfoi- Massachusetts, have inventedi a new anduseul Improvement -in lAutomatic Sprinklers,` of whichthe following 1 is a y specification accompanied by drawings,

forming a part of. the same,kin which?.

'view of my improvedsprinkler. Figs2 is a top view with aporti'on removed to disclose4 the top of the di-user. Fig. 3 isa 'side ele-- vation ofthe u per portion of my improved t :1 5 fs rinliler, and

Figure 1" represents a .vertical sectional 1g.4 a ,bottoni lvient ofthe f user. l v 4 ,l l y Similar reference letters and iigures refer i tosimilar parts in the different 'views My present 'invention relates to that 'cl-ass of automatic sprinklers inwvhich a stream of wat-er'i.-3 f released by the action of heat, and the stream lis diiused'in als ray, and it consists'in the construction an arrangement of pointed i same having been fully described and toa. water 4ipe leading-to a source of Water supply un er pressure. ,Theupper end of'- t-he nozzle rovided with'a seat 3 toreceive a cap 4 y which the nozzle is close-d against the pressure of Water. Preferably mte'gral u thtlie nozzle 1 are the arms', 5,

which-are curved outwardly and extend upwardly land are connected atthe top by a which is rovided with a screw threaded o' ning which' is larger than the diameter o the seat 3, in order to' allow* a fintool to be'admitted through the lopenforrthe purpose of the seat. l ijthin the screwsv threaded opening 7 is inserted a diffuser inthe form of an inverted cup, having a bottom S, and side 9, -provj ed with a flaring 'serrated lower edgelO.' Thebottom 8 is provided Witha series of holes 11,' and with a central hole 12 in which is inserted a shank 13 of a. 'depending wedge l Specification of Letters Patent. i applicaao'med'ocrober 7. 1905. serial N0.`2s1,864.

Mi: i.

14 isnot only held verticallyfin lace ont is cap'ableoi a' rotating motionivit v`tjhefbottomS of the diffuser. The washer "1.6vv has its outeredge curved ldomiwardly andmis provided with holes 1.9,. Therap is..` rovided with a boss 2() and betweenthe` oss' 20` and the lower ledge of the Wedge 1l are inserted the `ca l retaining devicesconsisting lever 22, and a strut23, com--l prising ,tryo pieces 2.4 and 25, having their contacting surfaces united by a metal fusible at the degree of heat at which it isdesired `to release the stream `ot.water,from the nozzle 1. T he post21 rests u on'the boss 20and supports one end of the ever22 which bears againstthe loweredge of the Wedge 1l. The o )positeendof'thelever 22 issupported bythe strut .23 Whiclnextends obliquely between the endv of the' lever 22 and a. shoulder 26 formed near the bottom ofthe post 21. y u;

Therap retaining device comprisingythe` ost.' lever, and strut as y abovedegscribed korm nov part of my presenti inventionwthev,

claimed in mypending application, 'Serial' No. 265,3 3. l

My present invention relates to the com Vstruction of the arms 5 and diffuser 9. supporting a stviveleti- Wedge tol receive the thrusting strain exerted by the pressure of -the vy'ater in the nozzle 1 against the cap 4.

By my present construction I forni the' nozzle and'arms 5 in a single piece terminating m a vring 6 which 1s provided -\v1th an opening larger thanvthe diameter of theV seat 3 Whic 'is to be closed by the cap, and the adjustment of pressure upon the cap I ob- .tain in the present instance bythe adjustment of the diffuser within the ring 6. I also ret-eive the ressure of the tvater against theend of a We ge and at the same time enable the pressure retaining devices to be rotated by swiveling the Wedge in its support. I also employ a Washer 16 with overhanging edges which serve as a seeond diiiuser.l In

' operation. when the cap -l hasbeenreleased by heat. and the cap retaining devices removed. the stream of water impinges against the sides of the wedge 14 andis deiiected into the rst di'user .and received against the bottom S, sides 9, and'serrated edge 10. A portion of the-water, however, passing through the openings'll is received bythe second diffuser and deflected laterally and downwardly. Aportion of the water escaping through the openings 11 however, 1s allowed to pass u wardly from the second difi'user through tie openings 19.

What I claim as my invention and desire to: seeuregby Letters Patent is 1. In an automatic sprinkler, the combi-j nation with a Water nozzleI and :aclosing cap for said nozzle, arms held by sa1d-nozzle,a

i ring supported by said `arms and provided .with a screw threaded o ening,. of a cu a closing cap., and a cap for .elosingsaid noz?.-

zle, of arms held by said noz'zle, a ring supported by said arms and providedwithan opening in alinement with said nozzle and y with a diameter equal to the diameter'of the diffuser, a diuser'adjustable in'said open.

ing, and a cap retaining deviceinter osed between said closing cap and said di user.

3. In van,automatic sprinkler, the combi- .nation with a water nozzle and a cap closing said nozzle, of arms held by said nozzle, `a ringsupportedby said arms, a diffuser held in said ring and having acentral opening in alinement .with the axis of said nozzle, a

Wedge provided with a shank held in said openingv andcapable of rotating therein, and

a cap retaining .device interposed between said wedge and said cap.

4. ln an automatic sprinkler, the combi nation with a nozzle, and a cap closing said nozzle, of 'arms held by said nozzle, a ring supported by said ar'ins, a dill'user held in said ring and provided with a central opening in alinement with the. axis of said nozzle, a wedge provided with ashank journaled in said o ening, a washer attached to the endI of sai shank, .a .spacingring between said diffuser and said washer, and means interposedbetween said wedge and said cap for holding` said cap vin place.

p 5. In an automatic sprinkler, the conibination with a water nozzle and a closing e'ap .fonsaid nozzle, of a rotatable member supported in 'alinement with said closing cap, and'a .cap retaining device between said rotatable irrember and saidclosing cap, said capretainnor devicefarranged to rotate with said rotatabemember.

6. In' an automatic sprinkler, 'the combination with a waternozzle and a cap closing said nozzle, 'of 'asta'tio1ary diiuse'r held in alinement with said` nozzle, a member rotatable v in'said diffuser, and a cap retaining device between said member'and said closing cap arranged to 'rotate with said rotatable member. y ,n

Datedthis 4th ay of October 1905.

GE RGE4 I. ROCKWOOD. Witnesses:

PENELor'i; COMBERBACH, RUFUs B. FOWLEB. 

